Yes, that's likely, they usually update the compiler when a new version in available.
I don't know if they are still using the incremental update release model, but they were last time I heard.
But if you buy "version 13" today, I believe it's not much different feature wise to "version 12" you could have bought last month.
The old release model was the traditional method of holding off a swag of new features until they released the next major version (6 monthly during the stupid summer/winter thing), and interim .X releases were mostly bug fixes.
That system would also require two development paths internal in the company, one for the current version, and one for the next major version.
The idea being that you eventually end up with a super stable current version, and then a new version with a lot of new bells and whistles, but probably less stable. So customers got to decide whether the new upgrade was worth it, or if they would just skip it and keep running the old version.
But I believe they are still running with the new model where new features and bug fixes get pushed out on a continuous basis. So the "major releases" effectively just become marketing labels as I said.
Although I don't keep in-the-know on this stuff any more.
Dave.